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A converging lens is placed 30.0 cm to right of a diverging lens of focal length 10.0 cm. A beam of parallel light enters the diverging lens from left and the beam is again parallel when it emerges from the converging lens. Calculate the focal length of the converging lens?
The drawing below shows an inverted "A" that is suspended from the ceiling by two vertical ropes. Each leg of the "A" has alengh of 2L and a weight of 120.0 N. The horizantal crossbar has a negligible weight. Find the force that the crossbar applies ..
A 2.0 m pendulum is released from rest when the support string is at an angle of 25 degrees with the vertical. What is the speed of the pendulum bob at the bottom of the string
A 14.5 gram, 78.6 centimeter long steel guitar string is vibrating in its fourth harmonic. What is the tension on the steel guitar 'string'
Smaller mammals use proportionately more energy than larger mammals; that is, it takes more energy per gram to power a mouse than a human. A typical mouse has a mass of 20 g and, at rest, needs to consume 3.0 Cal each day for basic body processes.
Let us model the electric behavior of such a molecule by a pair of ±1.60 × 10-19-C charges connected by a spring with force constant 8.29 × 10-4 N/m, Find the charge separation distance in an electric field of 6.41 × 105 N/C
Point charges of +1nc, +3nc and -3nc are located at each of three corners of an equilateral triangle with side length of 30cm. Find the net electrostatic fornce exerted on the +1nc charge.
A piano wire with mass 3.45g and length 85.0cm is stretched with a tension of 31.0N. Calculate the average power carried by the wave
For the transmutation reaction 1H + 93Y -> ___ + 4He, What is the element abbreviation of the daughter atom
Find equation for the ground state energy for a particle in a spherically symmetric potential well,V(r) = -ad(r-a), and show that the bound state appears only when a is greater than some critical value.
The water passing over Victoria Falls, located along the Zambezi River on the border of Zimbabwe and Zambia, How much internal energy is produced per kg as a result of the fall
List all the possible set of quantum numbers for a hydrogen atom with n=3. What is the electrons total energy
Two circular glass microscope slides of diameter 1 cm are separated by a water film of thickness t = 10 mu m. The water completely wets the slides. What is the contact angle of water on the slides?
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